1Fitment: Fit for A3/S3/RS3 8V Facelift 2017?2020; Fit for A4/S4/RS4 B9 Pre?facelift 2017?2019; Fit for Q5/SQ5 80A Pre?facelift 2018?2020; Fit for RS6 C8 2019?, etc. 2Adjustable 500 to 9000 Rpm: Paddle shifter adopts professional F1 design, LED shift indicator, which can be adjusted from 500 rpm to 9000 rpm, and the upper and lower limits of Rpm can be adjusted. 3Shift Light: LED shift indicator includes 9 LEDs on each side of the paddle shifter that lights up gradually in green as the engine Rpm increases. Once it reaches the user configured Rpm, the indicator flashes red as an up shift reminder. 4App Control: Using mobile phone downloads the LED Performance App, which can obtain the dynamic data of the car in real time, including: speed, Rpm, engine load, remaining fuel, voltage, engine oil temperature, water temperature, range, turbine pressure, etc. 511 LED Lamp Colors: The LED light has 11 adjustable colors, 9 LEDs can be set separately according to your own preferences, and the color can be adjusted when the gear shift flashes. 6Professional Installation: Including OBD2 control box, it can realize wireless connection and data transmission without programming. Professional machinists are strongly recommended to install and upgrade.